Keysight Technologies B2901A User manual

Keysight Technologies
Detailed Demonstration Guide:
Making Resistance Measurement Using SMU
Keysight B2901A/02A/11A/12A Precision Source/Measure Unit
Demonstration Guide

The Keysight Technologies, Inc.
B2901A/02A/11A/12A Precision
Source/Measure Units are compact
and cost-effective bench-top Source/
Measure Units (SMUs) with the
capability to output and measure
both voltage and current. The
B2901A/02A/11A/12A enables you
to make a wide range of current
versus voltage (IV) measurements
more accurately and quickly
than ever before. In addition, the
B2901A/02A/11A/12A comes with
an intuitive graphical user interface
(GUI) and free PC-based application
software that make it easy for you to
begin making productive measure-
ments immediately.
This demonstration guide shows how
easily basic resistance measurement
can be made using the Keysight
B2901A/02A/11A/12A.
The demonstration includes not only
a simple resistance measurement
using 2-wire connection, but also a
low resistance measurement using
4-wire connection.
Required Instrument and Accessories
Keysight 11059A Kelvin Probe Set and Resistors are equipped as a demo kit
with a demo unit of the Keysight B2900A Series of SMU.
Keysight 11059A Kelvin Probe Set
1 Ω Resistor
1 kΩ Resistor
Keysight B2901A/02A/11A/12A
Precision Source/Measure Unit
Introduction

3
Objective
This lab shows how a single-point
measurement can be done with
an intuitive GUI and shallow menu
tree on the B2900A Series of SMUs
through the resistance measurement
Procedure overview
1. Change View mode to Single View
2. Use AUTO measurement operation
3. Turn off the channel output
LAB 1: Make a Resistance Measurement
Setup
1. Connect the yellow banana plug to Ch 1 Low Force terminal.
2. Connect the red banana plug to Ch 1 High Force terminal.
3. Clip the one lead of 1 kΩ Resistor with the black gold-plated tweezers.
4. Clip the other lead of 1 kΩ Resistor with the red gold-plated tweezers.
Demonstration
1. Change View mode to Single View
a. Press repeatedly until Single View for
Channel 1 is shown in the display.
2. Use AUTO measurement operation
a. Rotate to select Resistance measurement operation, and then press
to edit it. Then select to set Resistance measurement operation to AUTO.
b. Press Ch1 to turn on Channel 1 Output relay.
c. Press to perform a single point measurement.
4
1
2
3
Red (11059A)
Yellow (11059A) Black (11059A)
Red (11059A)
Black
Brown
Brown
Brown
Brown
1 kΩ Resistor
(2) Press AUTO
(1) Rotate and press
Resistance Measurement Operation
to select
Measurement parameters are updated whenever
Trigger Button is pressed

4
d. Press to repeat single point measurements periodically.
e. Press to stop making measurements periodically.
3. Turn off the channel output
a. Press Ch1 to turn off Channel 1 Output relay.
LAB 1: Make a Resistance Measurement (continued)
Measurement parameters
are updated periodically
“Auto” indicator is turned on
“Auto” indicator is
turned off

5
Objective
This demonstration shows how accu-
rately a low resistance measurement
can be done with 4-wire connection
by comparing the result with 4-wire
connection to the one with 2-wire
connection.
Procedure overview
1. Reset the instrument
2. Perform the measurement via
4-wire connection
3. Perform the measurement via
2-wire connection
4. Compare two results
LAB 2: Make an Accurate Low Resistance Measurement
Setup
1. Connect the yellow banana plug to Ch 1 Low Force terminal.
2. Connect the orange banana plug to Ch 1 Low Sense terminal.
3. Connect the red banana plug to Ch 1 High Force terminal.
4. Connect the brown banana plug to Ch 1 High Sense terminal.
5. Clip the one lead of 1 Ω Resistor with red gold-plated flat tweezers.
6. Clip the other lead of 1 Ω Resistor with black gold-plated tweezers.
Why is 4-wire connection required?
For very low resistance measurements where the residual lead resistance is
comparable to the DUT resistance, the 2-wire measurement will give erroneous
measurement results. In this case a 4-wire connection scheme (remote sensing)
can be used to eliminate this error. A 4-wire measurement uses one pair of leads
to force current and the other pair of leads to monitor voltage. This eliminates
cable resistance effects so that only the voltage drop across the DUT is measured.
Red (11059A)
Yellow (11059A)
Red (11059A)
Black (11059A)
Black
Black
Brown
Brown
Silver
Brown (11059A)
Orange (11059A)
1
26
5
3
4
1 Ω Resistor
a) 2-wire connection (R
DUT
≈R
Lead
) b) 4-wire connection
LeadDUT
Source
Meas
Meas
RR
I
V
R×+== 2
High Force
Low Force
B2901/02/11/12A
R
DUT
R
Lead
R
Lead
V
Meas
I
Source
DUT
Source
Meas
Meas
R
I
V
R==
High Force
Low Force
Low Sense
High Sense
B2901/02/11/12A
V
Meas
I
Source
R
DUT
R
Lead
A
B

6
LAB 2: Make an Accurate Low Resistance Measurement (continued)
Status indicator to show 4-wire conguration
If the channel is configured to use 4-wire connection, you can see the status
indicator on GUI as below, although no indicator can be seen on being configured
to use 2-wire connection.
Demonstration
1. Reset the instrument
a. Press , , and then press to display Confirmation
dialogue.
b. Press to reset the instrument.
2-wire connection 4-wire connection
(1) Press More…
(2) Press System
(3) Press Reset

7
LAB 2: Make an Accurate Low Resistance Measurement (continued)
2. Perform the measurement via 4-wire connection
a. Press , , and then press to display Output
Connection dialogue.
b. Press and select , and then press to configure to use
4-wire connection.
c. Press , then press to set Channel 1 V/I Source Function to I Source.
(If can’t be found on the Assist keys, press to change the keys.)
d. Press and set Channel 1 Source Value to 10 mA.
(1) Press Config
(2) Press Source
(3) Press Connection
(3) Press OK
(2) Press 4-WIRE
(1) Press
(1) Press Mode (2) Press AMPS (I)
(1) Press Source (2) Enter 10 mA

8
Resistance measurement
operation
The resistance measurement
operation is set to OFF in the default
setting. To perform resistance
measurement, you need to select
the operation among AUTO, FIXED
and V/I. For AUTO and FIXED, the
B2900A Series of SMUs performs
resistance measurement by using
the current source and voltage
measure condition automatically
set by the resistance measurement
range setting. For V/I, the B2900A
Series of SMUs performs measure-
ment by using the present source/
measure condition and calculates
the resistance value.
e. Press and set Channel 1 Limit value to 1 V.
f. Rotate to select Resistance measurement operation and press to
edit it. Then press to set Resistance measurement operation to V/I.
g. Press Ch1 to turn on Channel 1 Output relay.
h. Press to perform a single point measurement.
3. Perform the measurement via 2-wire connection
a. Press Ch1 to turn off Channel 1 Output relay.
b. Press , , and then press to display Output
Connection dialogue.
LAB 2: Make an Accurate Low Resistance Measurement (continued)
(1) Press Limit (2) Enter 1 V
(1) Rotate and Press
Resistance measurement operation
to select (2) Press V/I
(1) Press Config
(2) Press Source
(3) Press Connection

9
c. Press , , and then press to configure to use 4-wire
connection.
d. Press Ch1 to turn on Channel 1 Output relay.
e. Press to perform a single point measurement.
4. Compare two results
a. Compare two results to see the effect of 4-wire connection. The result with
4-wire connection is 1 Ohm, while the one with 2-wire connection is 1.6 Ohm.
The difference, that is 0.6 Ohm, should be the residual lead resistance on the
measurement cables.
LAB 2: Make an Accurate Low Resistance Measurement (continued)
(3) Press OK
(2) Press 2-WIRE
(1) Press
High Force
Low Force
B2901/02/11/12A
R
DUT
R
Lead
R
Lead
V
Meas
I
Source
a) Result with 2-wire connection b) Result with 4-wire connection
High Force
Low Force
Low Sense
High Sense
B2901/02/11/12A
V
Meas
I
Source
R
DUT
R
Lead
A
B
The result with 2-wire connection includes the residual lead resistance R
Lead
.

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(BP-09-23-14)
10 | Keysight | Detailed Demonstration Guide: Making Resistance Measurement Using SMU - Demonstration Guide
This information is subject to change without notice.
© Keysight Technologies, 2014
Published in USA, August 4, 2014
5991-4247EN
www.keysight.com